I don't disagree in general.  But I think there are ways that investment, private or public, can create new spaces for a society.  The internet is one example of a space where economic relationships are now able to occur and grow due to investment in telecommunications and computing infrastructure and technological advances.  Likewise, the expansion of human economic activity into extraterrestrial space, whether in near earth orbit or elsewhere in the solar system, is an actual increase in space resources available to some societies who make such investments.